Although it’s not known exactly why dogs shed when they’re stressed, it’s suspected to be due to epinephrine (aka adrenaline), which is the primary stress hormone in the body. Skin Parasites If your dog is shedding more than usual and excessively scratching, they may have fleas, ticks...
If your dog is licking and scratching persistently, check to see if she has fleas. Other Skin Irritations: Other skin irritations, such as mange, ringworm, hot spots, hives, etc., can also cause excessive dog licking. If you cannot find any skin irritations or problems that may have ...